"""
"""
import pygame
from pygame.locals import *

from const import *
import widget

class Keysym(widget.Widget):
    """A keysym input.
    
    <p>This widget records the keysym of the key pressed while this widget is in focus.</p>
    
    <pre>Keysym(value=None)</pre>
    
    <dl>
    <dt>value<dd>initial keysym, see <a href="http://www.pygame.org/docs/ref/key.html">pygame keysyms</a> </dl>
    
    <strong>Example</strong>
    <code>
    w = Input(value=pygame.locals.K_g)
    
    w = Input(pygame.locals.K_g)
    
    w = Input()
    </code>
    
    """

    def __init__(self,value=None,**params):
        params.setdefault('cls','keysym')
        widget.Widget.__init__(self,**params)
        self.value = value
        
        self.font = self.style.font
        w,h = self.font.size("Right Super") #"Right Shift")
        self.style.width,self.style.height = w,h
        #self.rect.w=w+self.style.padding_left+self.style.padding_right
        #self.rect.h=h+self.style.padding_top+self.style.padding_bottom
    
    def event(self,e):
        used = None
        if e.type == FOCUS or e.type == BLUR: self.repaint()
        elif e.type == KEYDOWN:
            if e.key != K_TAB:
                self.value = e.key
                self.repaint()
                self.send(CHANGE)
                used = True
            self.next()
        self.pcls = ""
        if self.container.myfocus is self: self.pcls = "focus"
        return used
    
    def paint(self,s):
        r = pygame.rect.Rect(0,0,self.rect.w,self.rect.h)
        #render_box(s,self.style.background,r)
        if self.value == None: return
        name = ""
        for p in pygame.key.name(self.value).split(): name += p.capitalize()+" "
        #r.x = self.style.padding_left;
        #r.y = self.style.padding_bottom;
        s.blit(self.style.font.render(name, 1, self.style.color), r)
    
    def __setattr__(self,k,v):
        if k == 'value' and v != None:
            v = int(v)
        _v = self.__dict__.get(k,NOATTR)
        self.__dict__[k]=v
        if k == 'value' and _v != NOATTR and _v != v: 
            self.send(CHANGE)
            self.repaint()